340538.fig.001a
(a)
340538.fig.001b
(b)
Figure 1: (a) the Primo Star iLED microscope has a UV light source that is beamed onto the slide from above, in addition to the classical white light from below, with a knob for interchange between UV and white light. (b) in presence of UV light, acridine orange stained trypanosomes fluoresce against a dark background, making it easy to detect the parasites.